Dross Skim Pans And Sow Molds

SMI manufactures dross skim pans, sow molds and press dross pans for aluminium casthouses — covering primary smelters, secondary smelters and aluminium rod plants across single and multiple chamber configurations. All products are manufactured from SMI’s proprietary material formulation, developed and refined over 30 years of supply to aluminium producers worldwide. Custom designs are available to customer drawing or sketch — SMI’s engineering team will provide detail design and quotation based on the customer’s specific casthouse requirements.

Product Range Overview

Dross Skim Pan — Single Chamber

Standard single chamber dross skim pans for collecting and skimming the floating dross layer from molten aluminium surfaces during the melting and refining process. The skim pan design incorporates an open-top collection chamber with structural base — allowing efficient dross collection and transfer to the dross press or cooling area. Nine standard configurations available from SMI-HT-120036T to SMI-HT-170041, covering capacities from 0.21 m³ to 0.90 m³.

→ View single chamber skim pan dimensions and model range

Dross Skim Pan — Multiple Chambers

Multiple chamber skim pan configurations for casthouses requiring separation of dross fractions, higher volume collection or specific process flow arrangements. Six standard configurations available from SMI-HT-130019T to SMI-HT-120029, covering capacities from 0.32 m³ to 1.05 m³.

→ View multiple chamber skim pan dimensions and model range

Sow Mold — Single Chamber

Single chamber sow molds for casting aluminium sows from molten metal or recovered aluminium — used in primary casthouse operations and secondary remelting facilities. Five standard configurations available from SMI-HT-120036B to SMI-HT-190051, covering capacities from 0.077 m³ to 0.37 m³.

→ View single chamber sow mold dimensions and model range

Sow Mold — Multiple Chambers

Multiple chamber sow molds for casting multiple sows per pour — increasing throughput and reducing cycle time in high-volume casthouse operations. Five standard configurations available from SMI-HT-140060B to SMI-HT-120030, covering capacities from 0.11 m³ to 0.48 m³.

→ View multiple chamber sow mold dimensions and model range

Press Dross Pan with Drain

Specialised press dross pans designed for use with hydraulic dross press systems. The base incorporates a drain configuration — working in conjunction with a dedicated base plate — allowing aluminium recovered during the pressing cycle to drain and be collected separately from the pressed salt cake. The drain design is developed as part of SMI’s integrated dross management approach, where the geometry of the pan and the base plate are engineered together to maximise aluminium recovery during pressing.

→ SMI Dross Press Systems — SMI40, SMI60, SMI80

Material and Design

All SMI skim pans and sow molds are manufactured from a proprietary material formulation developed in-house over three decades of continuous supply to aluminium producers. The formulation is optimised for two specific performance requirements in aluminium casthouse service:

• Rapid cooling rate — the material composition and wall geometry are engineered to achieve a fast cooling rate after dross or metal contact, reducing the oxidation window and improving the quality of the recovered dross or cast sow
• Thermal shock resistance — repeated thermal cycling from ambient to molten aluminium contact temperatures and back is the primary cause of premature failure in casthouse consumables. SMI’s proprietary formulation is developed specifically to resist this mechanism, extending service life in demanding casthouse environments

Alternative material options are available for specific customer requirements or operating conditions — contact SMI to discuss material selection for your casthouse application.

Custom Design Capability

SMI’s engineering team provides custom skim pan, sow mold and press dross pan design for casthouses with non-standard requirements. The design process begins with the customer’s basic drawing or sketch — SMI develops the detail design, including wall geometry, base configuration, chamber layout and drain features where applicable, and provides a quotation for review before production commitment.

Custom design is available for:

• Non-standard chamber dimensions or capacities
• Modified base configurations for specific handling or transport equipment
• Custom chamber layouts for specific dross fraction separation requirements
• Press dross pan configurations matched to specific dross press models — including adaptation to third-party press frames
• Integrated base plate and drain pan systems for maximum aluminium recovery

Global Supply

SMI dross skim pans and sow molds are in active service at primary smelters, secondary smelters and aluminium rod plants across the Middle East, Europe, India, North America and Asia-Pacific — including multiple operations within the world’s highest-output primary aluminium production groups. All supply relationships are subject to confidentiality agreements.

بالعربية — صواني الخبث وقوالب السبائك لمصانع الألومنيوم

تقوم SMI بتصنيع صواني كشط الخبث وقوالب السبائك وصواني الضغط لمصانع الألومنيوم — تشمل تكوينات الغرفة الواحدة والغرف المتعددة. جميع المنتجات مصنوعة من تركيبة مواد خاصة بـ SMI مطورة على مدى 30 عاماً، مُحسَّنة لسرعة التبريد ومقاومة الصدمات الحرارية. التصاميم المخصصة متاحة وفق رسومات العميل. للاستفسار، تواصل مع فريق SMI →

En Español — Bandejas de Escoria y Moldes de Lingotes para Fundiciones de Aluminio

SMI fabrica bandejas de escoria, moldes de lingotes y bandejas de prensa para fundiciones de aluminio — en configuraciones de cámara única y múltiples cámaras. Todos los productos están fabricados con la formulación de material propietaria de SMI, desarrollada durante 30 años, optimizada para velocidad de enfriamiento rápido y resistencia a los choques térmicos. Diseños personalizados disponibles según planos del cliente. Para consultas, contacte al equipo de SMI →

Related Products — SMI Dross Management

• Aluminum Dross Press — SMI40, SMI60, SMI80
• Dross Press Cooling Head
• Alloy Steel Sow Mold — Material Options and Specifications
• Key Design Features — Skim Pans, Slag Bins and Sow Moulds
• Aluminum Dross Cooling Pan
• Contact SMI — Skim Pan and Sow Mold Enquiry →

Request a Quotation

To enquire about dross skim pan, sow mold or press dross pan supply, please provide:

• Product type — skim pan, sow mold or press dross pan
• Chamber configuration — single or multiple chambers
• Required capacity — m³ or dimensions if known
• Dross press model — if ordering press dross pans for use with a specific press
• Annual consumption volume — pieces per year
• Current supplier and any known service life or quality issues
• Drawing or sketch if custom design is required

SMI will respond with a written technical assessment and commercial proposal. Contact SMI — Skim Pan and Sow Mold Enquiry →